fn main() {
	name := 'Bob'
	bobby := name + 'by' // + is used to concatenate strings
	println(bobby)       // "Bobby"
	mut s := 'hello '
	s += 'world'         // `+=` is used to append to a string
	println(s)           // "hello world"
	
	// all operataors in V must have values of the same type on both sides
	// you canno concatenate an integer to a string
	age := 10
	// println('age = ' + age) // not allowed
	
	println('age = ' + age.str())
	println('age = $age')   // string interpolation(preferred)
}
